melanostomus, Bathychaunax Caruso [J. H.] 1989:575, Figs. 1A, 2 [Bulletin of Marine Science v. 45 (no. 3); ref. 14230] Southeastern Indian Ocean, 16°55'S, 114°53'E, depth 1600-1700 meters. Holotype: ZIN N48575. Paratypes: ZMMU P-17403-05 (4, 3, 1), P-17478 (1, not found). •Valid as Bathychaunax melanostomus Caruso 1989 -- (Lindberg et al. 1997:227 [ref. 23547], Caruso 1999:2022 [ref. 24765], Hutchins 2001:22 [ref. 25847]). •Valid as Chaunacops melanostomus (Caruso 1989) -- (Caruso et al. 2006:120 [ref. 28546], Ho & McGrouther 2015:946 [7] [ref. 33685]). Current status: Valid as Chaunacops melanostomus (Caruso 1989). Chaunacidae. Distribution: Southeastern Indian Ocean, off Western Australia. Habitat: marine.